Container cover



FIG. 1 is a perspective view of the container cover;

FIG. 2 is a side elevational view of the container cover as seen from any side thereof, all sides being the same in appearance;

FIG. 3 is a top plan view of the container cover; and,

FIG. 4 is a bottom plan view of the container cover.

Broken lines shown in the drawings are not part of the claimed design. 

The ornamental design for a container cover, as shown and described. 